import { renderHook, waitFor, act } from '@testing-library/react';
import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
import { http, HttpResponse } from 'msw';
import { createElement } from 'react';
import { describe, expect, it } from 'vitest';
import { server } from '@/mocks/server';
import { API_BASE } from '@/mocks/auth/fixtures';
import { getMockUsers } from '@/mocks/users/handlers';
import { useUsers, useInviteUser, useChangeRole } from './useUsers';

function createWrapper() {
    const queryClient = new QueryClient({
        defaultOptions: { queries: { retry: false }, mutations: { retry: false } },
    });
    return ({ children }: { children: React.ReactNode }) =>
        createElement(QueryClientProvider, { client: queryClient }, children);
}

const USERS_URL = `${API_BASE}/api/v1/Users`;

describe('useUsers', () => {
    it('starts in loading state', () => {
        const { result } = renderHook(() => useUsers(), { wrapper: createWrapper() });
        expect(result.current.isPending).toBe(true);
    });

    it('returns the users list on success', async () => {
        const { result } = renderHook(() => useUsers(), { wrapper: createWrapper() });
        await waitFor(() => expect(result.current.isPending).toBe(false));

        expect(result.current.isError).toBe(false);
        expect(result.current.data).toHaveLength(getMockUsers().length);
        expect(result.current.data?.[0].email).toBe(getMockUsers()[0].email);
    });

    it('enters error state on 5xx', async () => {
        server.use(http.get(USERS_URL, () => HttpResponse.json({}, { status: 500 })));

        const { result } = renderHook(() => useUsers(), { wrapper: createWrapper() });
        await waitFor(() => expect(result.current.isPending).toBe(false));

        expect(result.current.isError).toBe(true);
    });
});

describe('useInviteUser', () => {
    it('returns inviteLink on successful mutation', async () => {
        const { result } = renderHook(() => useInviteUser(), { wrapper: createWrapper() });

        await act(async () => {
            await result.current.mutateAsync({ email: 'new@example.com', role: 'User' });
        });

        await waitFor(() => expect(result.current.isSuccess).toBe(true));
        expect(result.current.data?.inviteLink).toContain('/invite/complete');
    });

    it('fails when server returns 400', async () => {
        server.use(
            http.post(`${USERS_URL}/invite`, () =>
                HttpResponse.json({ detail: 'already exists' }, { status: 400 }),
            ),
        );

        const { result } = renderHook(() => useInviteUser(), { wrapper: createWrapper() });

        await act(async () => {
            await result.current.mutateAsync({ email: 'dup@example.com', role: 'User' }).catch(() => {});
        });

        await waitFor(() => expect(result.current.isError).toBe(true));
    });
});

describe('useChangeRole', () => {
    it('succeeds when server returns 200', async () => {
        const { result } = renderHook(() => useChangeRole(), { wrapper: createWrapper() });

        await act(async () => {
            await result.current.mutateAsync({
                userId: '22222222-2222-2222-2222-222222222222',
                newRole: 'User',
            });
        });

        await waitFor(() => expect(result.current.isSuccess).toBe(true));
    });

    it('fails when server returns 403', async () => {
        server.use(
            http.put(`${USERS_URL}/:userId/role`, () => new HttpResponse(null, { status: 403 })),
        );

        const { result } = renderHook(() => useChangeRole(), { wrapper: createWrapper() });

        await act(async () => {
            await result.current
                .mutateAsync({ userId: 'any-id', newRole: 'Administrator' })
                .catch(() => {});
        });

        await waitFor(() => expect(result.current.isError).toBe(true));
    });
});